IPA: /ˌriːkənˈfɜːrmeɪʃən/
KK: /ˌriːkənˈfɜːrmeɪʃən/
The action of confirming something again or a second time.
The reconfirmation of the meeting time was necessary to ensure everyone was on the same page.
Reconfirmation → It is formed from "re-" (meaning again) and "confirmare" (meaning to make firm or establish). The word "reconfirmation" means the act of confirming something again or establishing it once more.
Think of 'confirming' something 'again' — 're-' means again, and 'confirmare' means to make firm.